Katie Waissel has hit back at Cheryl Cole over comments the former X Factor judge made about her.
In her autobiography Cheryl: My Story, the Girls Aloud singer says she picked X Factor contestant Katie for the live shows because she would make "good TV".
She writes: "Simon had spent the past two years drumming into me that we needed acts who would be 'good TV.'
"When I saw Katie perform... I had to admit that she was... quirky, intriguing and busting to succeed.
"In short, she had the character and drive it took to withstand the pressure of the show, and so I put her through, even though she messed up when she sang in front of Will (will.i.am)."
Katie later tweeted: "@cherylcole thought you were better than this. Shame I trusted you. you live and you learn."